1/4" x 2-1/4" Conquest T-30 Flat Head Concrete Screw, Pkg 100 DGF/DGBF/DGHF Fire Wall Hangers Its straightforward

Its straightforward

If you have a nominal post measuring 3-1/2x5-1/2" you will need an ABA46Z Post base

Large Washer Head – Distributes force for stronger joints and prevents the screw from sinking too deep

Use a power driver with a #3 square-drive bit

1/4" x 2-1/4" Conquest T-30 Flat Head Concrete Screw, Pkg 100 DGF/DGBF/DGHF Fire Wall Hangers Its straightforwardConquest T 30 Flat Head Concrete Screws are a cost efficient solution when you need a low profile, flush finish without sacrificing holding strength. Designed for fastening into concrete, brick, or block, these screws eliminate the need for separate anchors, making installation faster and more efficient. The flat head sinks in flush with the surface, giving you a clean and finished look. The T 30 star drive helps prevent your bit from slipping and